I'd like to point out Hakumen's 6A now has head invincibility, making it a fairly decent AA, especially on CH where he can combo after it. I've punished a few bad aerial approaches using Hak's 6A against Hazama.
And while you should be keeping track of it in the first place, keep an eye on Hazama's drive stock. If you whiff a chain and let Hakumen get in, you're going to be in for it.